1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/*
* Authors:
* Brian Paul
*/
#include "main/imports.h"
#include "main/image.h"
#include "main/macros.h"
#include "st_context.h"
#include "st_atom.h"
#include "st_cache.h"
#include "st_draw.h"
#include "st_program.h"
#include "st_cb_accum.h"
#include "st_draw.h"
#include "st_format.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
static void
st_Accum(GLcontext *ctx, GLenum op, GLfloat value)
{
const GLint xpos = ctx->DrawBuffer->_Xmin;
const GLint ypos = ctx->DrawBuffer->_Ymin;
const GLint width = ctx->DrawBuffer->_Xmax - xpos;
const GLint height = ctx->DrawBuffer->_Ymax - ypos;
switch (op) {
case GL_ADD:
if (value != 0.0F) {
accum_add(ctx, value, xpos, ypos, width, height);
}
break;
case GL_MULT:
if (value != 1.0F) {
accum_mult(ctx, value, xpos, ypos, width, height);
}
break;
case GL_ACCUM:
if (value != 0.0F) {
accum_accum(ctx, value, xpos, ypos, width, height);
}
break;
case GL_LOAD:
accum_load(ctx, value, xpos, ypos, width, height);
break;
case GL_RETURN:
accum_return(ctx, value, xpos, ypos, width, height);
break;
default:
assert(0);
}
}
void st_init_accum_functions(struct dd_function_table *functions)
{
functions->Accum = st_Accum;
}
|
